Commit-ID: dc20b2d526539344d7175a2a83221337302596b8 Gitweb: http://git.kernel.org/tip/dc20b2d526539344d7175a2a83221337302596b8 Author: Thomas Gleixner <[email protected]> AuthorDate: Mon, 28 Aug 2017 08:47:55 +0200 Committer: Ingo Molnar <[email protected]> CommitDate: Tue, 29 Aug 2017 12:07:28 +0200
x86/idt: Move interrupt gate initialization to IDT code Move the gate intialization from interrupt init to the IDT code so all IDT related operations are at a single place. Signed-off-by: Thomas Gleixner <[email protected]> Cc: Andy Lutomirski <[email protected]> Cc: Borislav Petkov <[email protected]> Cc: Brian Gerst <[email protected]> Cc: Denys Vlasenko <[email protected]> Cc: H. Peter Anvin <[email protected]> Cc: Josh Poimboeuf <[email protected]> Cc: Linus Torvalds <[email protected]> Cc: Peter Zijlstra <[email protected]> Cc: Steven Rostedt <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Ingo Molnar <[email protected]> --- arch/x86/kernel/idt.c | 18 ++++++++++++++++++ arch/x86/kernel/irqinit.c | 18 ------------------ 2 files changed, 18 insertions(+), 18 deletions(-) diff --git a/arch/x86/kernel/idt.c b/arch/x86/kernel/idt.c index 4327104..99f93a6 100644 --- a/arch/x86/kernel/idt.c +++ b/arch/x86/kernel/idt.c @@ -286,7 +286,25 @@ void __init idt_setup_debugidt_traps(void) */ void __init idt_setup_apic_and_irq_gates(void) { + int i = FIRST_EXTERNAL_VECTOR; + void *entry; + idt_setup_from_table(idt_table, apic_idts, ARRAY_SIZE(apic_idts)); + + for_each_clear_bit_from(i, used_vectors, FIRST_SYSTEM_VECTOR) { + entry = irq_entries_start + 8 * (i - FIRST_EXTERNAL_VECTOR); + set_intr_gate(i, entry); + } + + for_each_clear_bit_from(i, used_vectors, NR_VECTORS) { +#ifdef CONFIG_X86_LOCAL_APIC + set_bit(i, used_vectors); + set_intr_gate(i, spurious_interrupt); +#else + entry = irq_entries_start + 8 * (i - FIRST_EXTERNAL_VECTOR); + set_intr_gate(i, entry); +#endif + } } /** diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c index 218cd06..1add9e0 100644 --- a/arch/x86/kernel/irqinit.c +++ b/arch/x86/kernel/irqinit.c @@ -89,29 +89,11 @@ void __init init_IRQ(void) void __init native_init_IRQ(void) { - int i; - /* Execute any quirks before the call gates are initialised: */ x86_init.irqs.pre_vector_init(); idt_setup_apic_and_irq_gates(); - /* - * Cover the whole vector space, no vector can escape - * us. (some of these will be overridden and become - * 'special' SMP interrupts) - */ - i = FIRST_EXTERNAL_VECTOR; - for_each_clear_bit_from(i, used_vectors, FIRST_SYSTEM_VECTOR) { - /* IA32_SYSCALL_VECTOR could be used in trap_init already. */ - set_intr_gate(i, irq_entries_start + - 8 * (i - FIRST_EXTERNAL_VECTOR)); - } -#ifdef CONFIG_X86_LOCAL_APIC - for_each_clear_bit_from(i, used_vectors, NR_VECTORS) - set_intr_gate(i, spurious_interrupt); -#endif - if (!acpi_ioapic && !of_ioapic && nr_legacy_irqs()) setup_irq(2, &irq2);
